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Basics

Suspension of fine solid particles or liquid droplets in a gas

Branch of natural philosophy

Property of some chemical elements to exist in two or more different forms

Amount of substance

Extensive physical property

Analytical chemistry

Study of the separation, identification, and quantification of matter

Aqueous solution

Solution in which the solvent is water

Rest mass of an atom in its ground state

Number of protons found in the nucleus of an atom

Any measure of the size of atoms

Avogadro constant

Fundamental metric system constant defined as the number of particles per mole

Ball-and-stick model

Molecular model

Block (periodic table)

Set of adjacent groups

Chemical process

Ceramic engineering

Science and technology of creating objects from inorganic, non-metallic materials

Association of atoms to form chemical compounds

Chemical composition

Concept in chemistry that has different, but similar, meanings if referred to a single pure substance or a mixture

Chemical compound

Substance composed of multiple elements that are chemically bonded

Chemical element

A species of atoms having the same number of protons in the atomic nucleus

Chemical engineer

Professional in the field of chemical engineering

Chemical equation

Symbolic representation of a chemical reaction

Chemical equilibrium

State which both reactants and products are present in concentrations which have no further tendency to change with time

Chemical formula

Compact notation for chemical compounds

Law of nature relevant to chemistry

Chemical nomenclature

Systematic naming of chemical compounds

Chemical reaction

Process that results in the interconversion of chemical species

Chemical safety

Means of ensuring that chemicals are safe

Chemical substance

Chemical synthesis

Planned series of chemical reactions to produce a desired substance

Scientist trained in the study of chemistry

Scientific discipline

A mixture of an insoluble substance microscopically dispersed throughout another substance

Computational chemistry

Branch of chemistry

Proportion of a constituent of a mixture to the whole

Congener (chemistry)

Related chemicals

Conversion (chemistry)

Any of several relative and absolute measures of the amount of reactants consumed in a chemical reaction

Chemical bond that involves the sharing of electron pairs between atoms

Cyclic compound

Molecule with a ring of bonded atoms

Dangerous goods

Solids, liquids, or gases harmful to people, other organisms, property or the environment

Descriptor (chemistry)

Type of notational prefix in chemistry nomenclature

Diatomic molecule

Molecule composed of only two atoms of the same or different chemical elements

Dispersion (chemistry)

System in which components are dispersed in a continuous phase of different composition, where at least one of the phases consists of finely divided phase domains

Chemical bond involving four bonding electrons; has one sigma plus one pi bond

Electrochemistry

Branch of chemistry

Electron affinity

Amount of energy released when an electron is attached to a neutral atom or molecule in the gaseous state to form a negative ion

Electron counting

Formalism used for classifying compounds and for explaining or predicting electronic structure and bonding

Electronegativity

Tendency of an atom to attract a shared pair of electrons

Empirical formula

Formula which tells relative ratio of different atoms in a compound

Mixture of two or more liquids that are generally immiscible

Environmental chemistry

Scientific study

Foam (disambiguation)

Topics referred to by the same term

Study of chemical processes and interactions of all biological and non-biological components of foods

Gel (disambiguation)

Topics referred to by the same term

GHS hazard pictograms

Standard set of hazard warning images

Globally Harmonized System of Classification and Labelling of Chemicals

International system of classification of chemicals managed by the United Nations that was set up to replace the assortment of hazardous material classification and labelling schemes previously used around the world

Group (periodic table)

Column of elements in the periodic table of the chemical elements

Loosely defined subset of elements that exhibit metallic properties

Intermolecular attraction between a hydrogen donor-and-acceptor pair

Inorganic chemistry

Field of chemistry

Inorganic compound

Chemical compound without any carbon-hydrogen bonds

Chemical bonding involving attraction between ions

Ionization energy

Minimum amount of energy required to remove an electron from an atom or molecule in the gaseous state

Molecule with identical atomic composition as another, but with different structures or orientations

IUPAC nomenclature of inorganic chemistry

Nomenclature of inorganic compounds

IUPAC nomenclature of organic chemistry

Nomenclature of organic compounds

Law of definite proportions

Chemical law about the ratio of substances in a compound

Law of multiple proportions

Chemical law that, if two elements form more than one compound, then the ratios of the masses of the second element which combine with a fixed mass of the first element will always be ratios of small whole numbers

Law of reciprocal proportions

Le Chatelier's principle

Principle to predict effects of a change in conditions on a chemical equilibrium

Lewis structure

Diagrams for the bonding between atoms of a molecule and lone pairs of electrons

Main-group element

A set of elements consisting of Groups 1, 2 and 13 to 18 in the periodic table

Mass concentration (chemistry)

Chemical term for density of a component in a mixture

Number of heavy particles in the atomic nucleus

Materials science

Research of materials

Medicinal chemistry

Scientific branch of pharmaceutical chemistry

Metallic bonding

Type of chemical bond in metals

Chemical element with relatively weak metallic and nonmetallic properties

Microscopic reversibility

Substance formed when two or more constituents are physically combined together

Molecular graphics

Computer graphics

Molecular model

Physical model that represents molecules and their processes

Molecular modelling

Discovering chemical properties by physical simulations

Electrically neutral group of two or more atoms

Metal that is found in its metallic form, either pure or as an alloy, in nature

Natural product

Chemical compound or substance produced by a living organism, found in nature

Hazard symbol used by emergency personnel to identify the risks posed by hazardous materials

Chemical element that mostly lacks the characteristics of a metal

Nuclear chemistry

Branch of chemistry dealing with radioactivity, transmutation and other nuclear processes

Count per volume

Chemical rule of thumblets

Open-chain compound

Type of organic molecule with a linear structure

Organic chemistry

Subdiscipline of chemistry

Organic compound

Chemical compound that contains carbon (except for several compounds traditionally classified as inorganic compounds)

Organometallic chemistry

Study of organic compounds containing metal(s)

Molecule made of a main-group element bound to hydrogen

Period (periodic table)

A method of visualizing the relationship between elements

Tabular arrangement of the chemical elements ordered by atomic number

Periodic trends

Specific recurring patterns that are present in the modern periodic table

Sub-discipline of chemistry

Physical chemistry

Physics applied to chemical systems

Molecular chemical ion

Polymer chemistry

Chemistry subdiscipline

Post-transition metal

Category of metallic elements

Product (chemistry)

Species formed from chemical reactions

Quantum chemistry

Chemistry based on quantum physics

Reactivity (chemistry)

Impetus for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy

Substance added to a system to cause a chemical reaction

Regulation of chemicals

Regulates the handling of hazardous materials

Relative atomic mass

Type of atomic measurement

3D schematic representation of protein structure

Safety data sheet

System for cataloging information, potential hazards and instructions for safe use associated with a material or product

Chemical bond between two atoms involving two valence electrons (atoms share one pair of electrons where the bond forms, therefore, a single bond is a type of covalent bond); usually a sigma bond

Colloidal suspension of very small solid particles in a continuous liquid medium

Chemical solution in solid form; whose host solvent's crystal structure is not altered by the solute

Solid-state chemistry

Study of the synthesis, structure, and properties of solid phase materials

Capacity of a substance to dissolve in a solvent in a homogeneous way

Solution (chemistry)

Homogeneous mixture of a solute and a solvent

Attraction and association of molecules of a solvent with molecules or ions of a solute

Substance dissolving a solute resulting in a solution

Space-filling model

Molecular model

Standard atomic weight

Relative atomic mass as defined by IUPAC (CIAAW)

Calculation of relative masses of reactants and products in chemical reactions

Structural formula

Graphic representation of a molecular structure

Structural isomer

Compound whose molecule has the same number of atoms of each element

Substrate (chemistry)

Molecule upon which an enzyme acts

Surface science

Study of physical and chemical phenomena that occur at the interface of two phases

Suspension (chemistry)

Heterogeneous mixture of solid particles dispersed in a medium

Systematic element name

Temporary name assigned to predicted chemical elements

Structural isomers of chemical compounds that readily interconvert

Template Attribute Language

Template language

Theoretical chemistry

Toxic heavy metal

Category of substances

Chemical bond involving six bonding electrons; one sigma plus two pi bonds

Nonsystematic name for a chemical substance

Type of laboratory

Workplace Hazardous Materials Information System

Canadian national hazard communication standard

Yield (chemistry)

Is a measure of a quantity of moles of a product formed in a chemical reaction